| Re组分及ZrO_2载体制备方法对Ru-Re/ZrO_2催化丙三醇氢解反应的影响 |
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| 引用本文： | 马兰,贺德华.Re组分及ZrO_2载体制备方法对Ru-Re/ZrO_2催化丙三醇氢解反应的影响[J].催化学报,2009,30(5). |
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| 作者姓名： | 马兰 贺德华 |
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| 作者单位： | 1. 清华大学化学系有机光电子与分子工程教育部重点实验室,北京,100084;防化指挥工程学院三系,北京,102205
2. 清华大学化学系有机光电子与分子工程教育部重点实验室,北京,100084 |
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| 基金项目： | 清华大学分析基金的资助 |
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| 摘 要： | 分别采用沉淀法、水热合成法和不同气氛下焙烧的方式制备了ZrO2载体,采用浸渍法负载Ru及Ru-Re组分制备了Ru/ZrO2和Ru-Re/ZrO2催化剂.利用氮气吸附-脱附、X射线衍射、透射电镜及程序升温还原等方法对样品的比表面积、孔容、平均孔径、晶体结构、形貌及还原特性等进行了表征.考察了Re组分及ZrO2载体制备方法对催化剂在丙三醇氢解制丙二醇反应中的催化性能的影响.结果表明,不同方法制备的ZrO2载体对负载型Ru催化剂的催化性能有一定影响,其中以沉淀法在空气中焙烧制得ZrO2负载活性组分后得到的催化剂的活件相对较低(转化率18.7%),而以沉淀法在氮气中焙烧以及水热合成法制备的ZrO2负载活性组分后得到的催化剂的活性相对较高(转化率25.8%).Re组分的引入对Ru/ZrO2系列催化剂的催化性能有明显的促进作用.
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| 关 键 词： | 钌 铼 氧化锆 双组分催化剂 丙三醇 氢解 促进作用 |
Effect of Rhenium Component and Preparation Methods of ZrO_2 Support on Catalytic Performance of Ru-Re/ZrO_2 for Glycerol Hydrogenolysis |
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| MA Lan,HE Dehua.Effect of Rhenium Component and Preparation Methods of ZrO_2 Support on Catalytic Performance of Ru-Re/ZrO_2 for Glycerol Hydrogenolysis[J].Chinese Journal of Catalysis,2009,30(5). |
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| Authors: | MA Lan HE Dehua |
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| Institution: | MA Lan1,2,HE Dehua1,1Innovative Catalysis Program,Key Lab of Organic Optoelectronics , Molecular Engineering of Ministry of Education,Department of Chemistry,Tsinghua University,Beijing 100084,China 2Institute of Chemical Defence,Beijing 102205,China |
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| Abstract: | ZrO2 supports were prepared by the precipitation method and hydrothermal synthesis method with calcination under different atmospheres.Ru/ZrO2 and Ru-Re/ZrO2 catalysts were prepared by the impregnation method.The physicochemical properties of the catalysts,such as surface area,cumulative pore volume,average pore diameter,crystal structure,surface morphology,and reduction behavior,were characterized by N2 adsorption-desorption,X-ray diffraction,transmission electron microscopy,and temperature-programmed redu... |
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| Keywords: | ruthenium rhenium dioxide zirconium bicomponent catalyst glycerol hydrogenolysis promoting effect |
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